| 摘要 |
The resonant sensor comprises a test body (10) able to be subjected to a force torque produced by an external mechanical structure, said body (10) comprising at least: - a first interface (2) and a second interface (3) each able to come into contact with said structure; - at least two sensitive areas (1) each arranged between said two interfaces (2, 3); one sensitive area being formed by a plate (21) embedded in a frame (22) rigidly mechanically connected to said interfaces, said plate being able to resonate under the effect of local mechanical excitations produced at particular points by excitation transducers carrying said plate at several resonant frequencies, sensors capturing the resonance signals produce at said particular points, measurement means measuring the resonant frequency shifts of the signals which are linear combinations of the captured resonance signals, said shifts being a function of the mechanical stresses induced by said forces and transmitted to said plate (21) by said frame (22), the components of said torque forces being determined from the resonant frequency shifts measured on the plates (21) of said sensitive areas (1). |
